Friction-clutch.



No. 898,362. PATENTED SEPT. 8,1908.

J; 'A. HOENIKAK: J. R.-TRIPLETT FRICTION'GLUTOH. AZPLIOATYION FILED 111 ,3125, 190s.

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To all concern: v

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"/Be it known that we JOHN ADAM HoENIn A and JESSEROBERT TRIPLETT, citizens of the United .States, residing at. Akron; in the .county ofasummit and State of Ohio, have inventedunew'. andduseful Improvements in Frietioneclutches, of which the following 1s a specification.

. ,flhis inventionrelates to friction clutches and: theobjectthereof is to provide a clutch .whichuizill be strong, durable, efficient and easyIto.. manufacture, possessed of great power-transmitting qualities and in which the operation of-the clutch produces no end thrust on I the shaft.

. Afurtherobject of this invention is to con- .struct a; device of the class designated in wvhichthexworking parts will be completely inclosed in an'approximately fluid and dusttight casing conta'ining an oil bath for effecting perfectfllubrication ottheparts as well as,

x to. prevent the entrance of dustand foreign matters thereto.

I (1th the,,=forego1ng view,ithe inventionconsists in the novel construction, ,combintion; and arrangement of parts hereinafter. speclfically described and i-llustrated, 1n theaccompanying drawings I which form; a 'part of this, specification wherein is shown? a preferred embodiment oftheinve'ntion, fbut 1t1s to be understood that changes I variations and mod ifications' :can beresorted. to which come within the scope of thefclaims hereunto ap ended.

'1teferr1ng; to.the drawings, igure 1 is a view invertlcah central, longitudinal section-of a friction clutchembodying our in-- vention, on; line of. Fig. .2.

transverse sectional-view on line Y of Fig. 1.

Fig. :3;- is a sectional view.-through a com i plete clutch ina ilane indicated by the line Z'of Fig.2, and; ig. 4 is a View, mainly dia .grammatic,

of the clutchpperating mech- ';Referring'tofthe drawings indetail, 1 is a] suitably-Suppl)rted rotatable shalt. looselymo'unted onhwhich is a cup-shaped member .2 having 'aihub 3and provided with an ex- -teriorlv-threaded portion 4 adjacent its open end. The out-er face 5 of the member 2 is shown crowned, .to receive a belt for transinitting motion to and from the clutch, but

. this portion may be formedwith sprocket or gear teeth for the same purpose without deand other objects in Fig. 2 is a' onnrrnp nn passe eosi rir'rnrrtsr'r, or nson, onto.

FRIGTIGN GEUTCHE .1

1: (resented Sept; areas.

parting from the scope of this invention. In the front edge of the cup-shaped portion of for a purpose to be later described.

' the me1nber'2 is a series of shallow recesses 5,

Shiftablym ounted on the shaft 1 is a sleeve 7 preferably having its outer end threaded to receive a grooved hub 8 held in 1 place thereon by means of a set screw 9.

Thcinner end of the sleeve 7 isprovided with an enlarged head 10 in which is a. cir-- cumferential groove 11. This sleev'e is also provided with a key-way 12, for a purpose to belater described.

- The open end of the. member 2 is arranged to be closed by means of a cap 13'provided with a lateral interiorly threaded flange 14b to engage and cooperate with the threads 4 of the member 2 and form therewith an approximately fluid and dust-proof joint and when in proper relation with the member 2- the cap 13 is locked against independent revolution by means of a set screw 15 carried by the. member 13 adapted to enter one of the series of recesses 6. The cap 13 is provided with a hub 16 mounted on the sleeve 7- i and is provided'with a set screw 17 arranged .to enter the key way 12 for locking the cap 13 and sleeve 7 together in order to insure their revolution in unison.

The fixed member of the clutch .comprises a friction plate 18, mounted on the shaft 1',

within the member 2 and provided with a hub '19, which carries a set screw 2Q for fixedly uniting it tothe shaft 1. The plate ISis also provided with aplurality of laterally-extending lugs 21 each provided with a recess in which are fixedly mounted parallel, laterally-extending guide-pins 22. Shiftably mounted on the outer ends of the, pins 22 is a perforated annularly-formed friction plate 23 adapted to slide on the. pins-22 toward and away from the plate 18 andadapted to revolve in unison therewith. The

plates 18 and 23 are each provided with oppositely-disposed; parallel pairs of lugs 24,. the pairs of lugs of each plate being arranged between the lugs 21, as shown in Fig.2.

Mounted centrally between the members of.

each pair of lugs 24 on the plate 18 is alaterally-extending pin 25 and between the lugs 24: of the plate is a similarpin p The plates 18 and 23 are normally ar fares of-the members 2 and 13 in order that ranged to lie out of contact with the inner res the revolutionof either of the plates 18 or 23, or the members .2 and 13 may take place w1th= ut-causmg a simultaneous revolution and '13.

- In the drawings, only one will be obvious that any desired number may be em loyed and as these sets of mechanism area alike, a description of the one is believedito besuffi'cient for a complete understanding of all'of them.

"The-- mechanism employed for effecting .'c lutching relation between the 'members,

comprisestwo members 27 and 28 oppo- -'sitely'-disposed to one another and having partially cylindrically-formed grooves in their opposing faces. Mounted in these cylindrical, groovesis a bolt 29 provided withflanged heads 30, The outer portion of the j member 27 is adaptedto engage the plate 18- btween the lugs24 and is formed with upper and lower-portions concentric with the center of the bolt 29 and'with a flat intermediate- 1 portion, and is also provided-with a shallow recess 31 to receive-th'e'projecting end of'tne s51 provided with a recess 32 to receive the eX-- pin 25. Tlie member 28 is positioned between thelugs21 on the plate 23 and is also tended end of the pin 26. The rear face of this member is provided with a flattened central portion 33 above which is a curvilinearlyformed portion 34 concentric with the center of the bolt 29; Below the-flat portion 33 is a curved ortio'n which is eccentric to the center of t e bolt 29 and constitutes a cam for forcing the plates 18 and 23 apart when the members 27 and 28 are thrown to the position shown in Fig. 1 and indicated by full lines in Fig. 4, which brings this cam portion into engagement with the plate 23. The member 28 is formed with a de ending leg 36 having a rounded end 37 whici is adapted to engage 'in the circumferential groove 11. Both 'members 27 and 28 are so shaped that the outer portions which bear against the plates 18 and '23, respectively, are enlarged as shown in Fig. 3, in order to provide greater bearing surface for these plates and the central portions which engage the bolt 29 are reduced as shown in this figure.

The operation of the device is as follows Motion communicated either by a belt or otherwise to the member 2 will cause a simultaneous revolution of the therewith, viz., the cap 13,

parts connected s eeve 7 and hub set of the mechanisms employed for forcing the plates18 and 23 apart and into frictional engagement with the members '2, and 13 is shown, but it 8. If it is desiredto transmit this motion to the shaft 1 a clutch lever, not shown butengaging in the-groove in the hub 8 is thrown so.

as to cause a shifting of the hub8-and sleeve 7 which causes theleg 36 of the member28 to swing into operative position, as, clearlyshown in Fig. 1 and indicated in'full lines in- Fi 4. This movement of the member 28 brings the cam surface 35 against the plate 23 forcing it into frictional engagement with the cap 13. The pressure of theplate 23 against the cap 13. causes the member 2 to slide on the shaft 1 sufficiently to bring the inner face thereof intofrictional engagement with the outer face of theplate 18. When the members 27 and 2-8 have been thrown into operative position as shown in Fig. 1, the flattened portions on the outer faces thereof are in engagement with the plates 18 and 23 which temporarily locks them against unintentional release until they are moved to inoperative position by the shifting of the sleeve 7. The inoperative position of the members 27 and 28 are shown in dotted lines in Fig. 4 and when in this position the outer faces of these members are withdrawn from engaging relation with the faces of the plates 18 and 23 thereby releasing them from the pressure exerted by. these members when in operative. relation and causes a discontinuance of the revolution of the plates 18 and 23 in unison with the cup-shaped'member 2 and its cap 13'.

It will be obvious that an number of pairs or 'sets of mechanisms, i1 ustrated by the members 27 and 28 maybe employed and they may be sodisposed with reference to the plates 18and 23. as willbest serve the purpose of this invention, and it will also be obvious that motion maybe transmitted from the shaft 1 to the member 2 instead of transmitting motion from the member 2 to the shaft 1. In either case the clutch constitutes means for, controlling the communication of power between them.

It will be apparent that the plates 18 and 23 must be so positioned that when the clutch-operating mechanism is thrown into engage the faces of the'plates 18 and 23 with sufficient firmness to cause simultaneous revolution of the'cup-shaped member 2 there with, andas the. contacting surfaces of the .members of the clutch will become more or less worn by use, experience has demonstrated that it will be occasionally necessa to adjust the position of the cap 13 with re erence to the member 2 and this is readily accomplished by removingthe, set screw 15 and. adjusting the cap 13 by revolving it in either direction; to bring it to "proper position, after which the set screwais again replaced which firmly holds the cap against. movement, If it is desired, the number of recesses 6 which within the cup-shaped member 2 for. the purto receive 1 the end set screw 15 maybe increased in order that the position of the cap 13 may be adjusted with the greatest nicety and then securely locked against movement." The joint between the members 2and 13 should be made sufii-' ciently tight to hold-a body of oil placed and-rotated'bysaid element, a' pair of coopcrating rocking members provided with curvilinearlyformed outer faces engaging a single movable pivot, one of said rocking membersprovided with 9, depending portion oscillatory in a longitudina respect to the axis of said element and adapted to'move saidrocking members into en members provided with a cam-sha iphery and further'p'rovided with a epend-- said shiftable member and said loose member. 2. In a clutch, the combin tion with a .Zeose member adapted to be mounted upon a vrotatable element, ashiftable member connected with'and rotated by said element, a

pair of rocking members-both engaging a single movablepivot, one of said rocking ed peing leg oscillatinglin'a longitudinal direction with respect to 't e axis'of said element di'sposedat one side of said shiftable member, and-means foroscillating said cam-shaped.

' shiftable memberto clutching. engagement.

member, causing thereby the moving of said with said loose member.

B. A clutch comprising a loose member adapted to be mounted upon a rotatable element, two fixed members connected with and rotatedby said element, one of'said fixed members being shiftable with respect to the other, a pair of rocking members provided with curvilinearly-formed outer faces and arranged 'to engage a single movable pivot,

4 each of said faces adapted to engage one of said fixedmembers, one of said rocking mem bers provided with .9. depending leg oscillatory in a longitudinal direction with respect to the axis of said element and means for oscillating said leg, causing thereby the moving of said'shiftable member into clutching engagement with said loose member.

direction with gagement with said shiitable member, theie-.v

oy causing clutchingengagement between pivot disposed at one. side; ofand; ind ndent of said shiftable member; and oscfif in a longitudinal direction with respect to the axis of said element, and means for oscillating-one of-saidrocking members, causing thereby the moving'of said shiftablememher to clutching engagement with said. loose member..

5. In a clutch, a cup-shaped loose, memberadapted to be mounted upon-'arotatable eleconstitute a closure device or the open end of said loose member, a fixed member within said loose member connected with and ro pivot, one of which is provided with an eccentric periphery and a dependingleg oscillating in a hne parallel to the axis of said element, and means for oscillating said leg for causing clutching engagement between said shiftable member and said loose member.

6. Inaclutch,ahollowloosememberada ted to be mounted on a rotable element, a shiftable member connected with and rotated by said element positioned within said loose member, a pair of cooperating members bothmounted on a movable ivot,-0ne of which is provided with a cam-s aped periphery and further provided with 21 depending. oscillatory leg, said last-named member when oscillated in one'direction adapted to move said shiftable' member to clutching engagement with said loose member, and means for oscillating said cam-shaped member.

7. -In-a clutch, a hollow loose member adapted to be mounted on a rotatable element, a friction plate connected with and rotated by said element positionedrwithin said loose member, a shiftable friction plate connected with and rotated by said fixed plate, a pair of cooperating rocking members adapted tobe mounted on a movable pivot, one of said rockin members provided with a cam face and oscillatory in a direction parallel to the axis of said element and means for oscillating said rocking memberfor causing the moving of said shiftable member to clutching engagement with said loose member.

, 8. In a clutch, a hollow loose member' adapted to be mounted upon a rotatable ele-l ment, a platefixedly connected with and rotated by said element, guide-pins carried by said plate, a' shiftable-plate carried bysaid' guide-pins, 'a pair of rocking members mounted on a movable common pivot and pigovided with curvilinearlydormed peripheries adapt: "ed to engage and: codperatewith said-"plates,

one of said rocking members arran ed to be oscillated in a direct on parallel'tot l ie axisof said rotatable element BTi (lQ TDQBH IIS for'oscillatmen-t, a-ca-p adapted to coo crate with and tated bysaid element, a shiftable member carried by said fixed member, a pair of 006 crating members mounted on a movab e ing said rocking memberfor moving wit said .with a pair of parallel laterally-projecting ln s, guide-pins carried by said-plate, a shift: ab e. plate carried by said guide-pins, said shiftable plate provided with a pair'of laterally-extending parallel lu s oppositely-disposed with respect to the Iugs on said tween said fixed and shiftable plates, each of said rocking members positionedbetween themembers of the pairs'of lugs on each of said plates, said rocking members mounted on a movable common pivot and .provided with curvilinearly-formed peripheries adapted to enga e and cooperate with said plates, one of said rocking members provided-with a depending leg oscillating in a line parallel to the axis of said rotatable element and means for oscillating said rocking member for moving said lates into clutching engagement .with

said oose member.

10. In a clutch, a hollow loose member adapted to be mounted upon a rotatable ele-' ment, a fixed late connected with and rotated by said e ement, a pin projecting from the face of said late, guide-pins carried by said plate, a shiitable plate carried by said members mounted one single movable pivot 760' allel lugs constitute retaining means 'there-- rocking members provided with a de guide-pins, a pin projectin from the face of' said shiftable plate, a pair oi rocking members disposed between said fixed and shiftable lates each provided with a recess in its outer ace to receive one of the pins projecting from said fixed and shiitable plates whereby said members are held in position, one of said ending leg oscillating in a direction paralle. to the axis of said rotatable element, and means for oscillating said rocking member-for moving said lates into clutching engagement with said oose member.

11. In a clutch, adapted to be mounted upon a rotatable element, a fixed late'connected with'and rotated by said e ement, a pair of laterally projeoting-parallel lugs on the face of said plate, a pin projecting from the face of said plate between'said lugs, guide-pinsv carried by said plate, a shiitable plate carried by said guidepins, a pair ofparallellu s piojectmg laterally from the face of sai s 'ftable late, a pin projecting from the face, of said s ftable plate between said lugs, a pair of rocking disposed between said fixed and ,shiitable plates and so disposed that said pairs of parfor, sa d members 'rovided curvilinearly-formed perip cr es, in WlllGll are re;

said

plate, a pair of rocking members disposed be- -ried by said plate, a

a hollow loose member 7 seaae cesses to receive the projectin ends of said pins, said rocking. members a apted to engage the inner faces of said plates one" of said ro'cldng members provided with an extended leg oscillating in a direction parallel to. the axis of said rotatable oscillatin said last-named member for moving "said dIiiftable member into gagement-with said loose member.

; 12. 'In a ,clutch, a hollewloose member adapted to be mounted upon a rotatable-eh element, and means for" clutching en ment, a plate fixedlyconnected with and rotated by said element, sustaining means carshiftable plate on said sustaining means, a pair of rocking members disposed between said fixed and shiftable plates, one of said members provided with a cam-shaped outer face a an extended oscillatory leg, means for oscillating said member whereby the cam-portion of said member is arranged to force said shiftable late into clutching oose member.

13. In a clutch, a hollow loose member adapted to be mounted iipon a rotatable element, a plate fixedlycon nected with and rotated by said element, a 'shiftable plate con nected with and revolved by said fixed plate, a air of rocking members disposed between engagement .with said said fixed and shiftable plates mounted on a'movable common pivot, one of said plates provided with a cam-shaped outer face and a depending oscillatory leg, a shiftable sleeve mounted on said rotatable element, said sleeve provided with means for engaging and oscillating said leg for causing the moving of said shiftable member to clutching engage-' ment with said loose member,

14. In a clutch, a hollow loose member adapted to be mounted upon a rotatable element, a plate fixedly connected with and rotated by said element, a shiftable plate connected with and rotated by said fixed plate, a pair of rocking members mounted on a common pivot disposed between said fixed and shiftable' plates, one of said members provided with a depending leg arranged to e oscillated in a direction parallel to the axis of said-rotatable element, and a shiftable sleeve on said rotatable element provided with a grooved inner end to receive and move the extended leg of said oseillatory element for causing the movement of said shiftable member to clutching-engagement with said loose member.

'15. Ina clutch, a hollow loose member adapted to be mounted upon a rotatable element, a. fixed plate connected with and roi tated by said guiding means carried by said fixed plate, a air of rocking members disposed between ement, a shiftable plate con nected with and rotated by said fixed plate,

said fixed and 'shiftable plates and engaging said guiding means, said rocking members adapted to be mounted on a single movable In testimony whereof we have hereunto pivot, one of said rocking members provided set our hands in presence of two subscribing 10 with an extended leg arranged to be OSCllwitnesses.

lated in a direction parallel to the axis of said JOHN ADAM HOENIKA.

5, rotatable element, and means for oscillating JESSE ROBERT TRIPLETT.

said rocking member for moving said shift- Witnesses: able plate into clutching engagement with O. E. HUMPHREY,

said loose member. GLEXARA Fox. 

